Is the legacy Photon video
interlaced or non-interlaced?

This question applies to the legacy Photon camera models. The
Photon product line and its accessories have been discontinued. The
information here is provided for historical reference.

The legacy Photon generates analog video that complies with
NTSC video standards, or PAL video standards if so configured. Each
video frame is comprised of two interlaced video fields (odd and even).
As in traditional video systems, fields are sampled every 1/60th of a
second (1/50th second PAL), one odd and one even. These fields are
recombined into a video frame every 1/30th of a second (1/25th second
PAL) to conform to NTSC and PAL standards for interlacing and display.

In traditional video systems, each odd and even field is
sampled 1/60th of a second apart. For legacy Photon, both odd and even
video fields are sampled at the same time. But even though the fields
are then interlaced to generate a frame, the data in each legacy Photon
video field (odd & even) is identical. Since each odd and even
field contains exactly the same data, the legacy Photon`s video
display, while fully compliant to NTSC standards, is consistent with a
progressive scan mode with the video sampling benefits of more detail
and less flicker. The digital output of legacy Photon is exclusively
progressive scan.